title: Health systems research: approaches and pitfalls.
abstract: In recent decades there has been growing interest in health systems research, reflecting the increased complexity of services, the evolution of alternative options, mounting budgetary pressures, and rising scepticism about public programmes. The methodological and operational challenges encountered in this field are reviewed below.
authors.affiliation: Center for International Development and Conflict Management, University of Maryland, College Park 20742.
authors.forename: A R
authors.initials: AR
authors.lastname: Omran
mesh_terms: D006301:Health Services Needs and Demand; D006302:Health Services Research / Q000191:economics / Q000379:methods*; D006801:Humans; D012107:Research Design